Long ago, all humans lived beneath the sea. However, some people preferred the surface and abandoned living underwater permanently. As a consequence, they were stripped of their god-given protection called "Ena" which allowed them to breathe underwater. Over time, the rift between the denizens of the sea and of the surface widened, although contact between the two peoples still existed.
This show follows the story of Hikari Sakishima and Manaka Mukaido, along with their childhood friends Chisaki Hiradaira and Kaname Isaki, who are forced to leave the sea and attend a school on the surface. There, the group also meets Tsumugu Kihara, a fellow student and fisherman who loves the sea.
Hikari and his friends' lives are bound to change as they have to deal with the deep-seated hatred and discrimination between the people of sea and of the surface, the storms in their personal lives, as well as an impending tempest which may spell doom for all who dwell on the surface.
Full Cast of Nagi-Asu: A Lull in the Sea
Ai Kayano
Chisaki Hiradaira (voice)
Kana Hanazawa
Manaka Mukaido (voice)
Mikako Komatsu
Miuna Shiodome (voice)
Kaori Ishihara
Sayu Hisanuma (voice)
Natsuki Hanae
Hikari Sakishima (voice)
Kaori Nazuka
Akari Sakishima (voice)
Ryota Osaka
Kaname Isaki (voice)
Kaito Ishikawa
Tsumugu Kihara (voice)
Motomu Kiyokawa
Isamu Kihara (voice)
Masuo Amada
Sakishima Tomoru
Daiki Yamashita
Yasuhiro Nanbu (voice) , Male student A (voice)
Junji Majima
Itaru Shiodome (voice)
Shizuka Ishigami
Akira Shiodome (voice) , Store clerk A (voice)
Yoshitsugu Matsuoka
Shun Sayama (voice)
Kohsuke Toriumi
Uroko (Uroko-sama) (voice)
Momoe Kishimoto
Old woman (voice)
Juri Kimura
Hama Junior High student B (voice)
Kengo Kawanishi
Gaku Egawa (voice)
Tomo Muranaka
Sayu's mother (voice)
Makoto Yasumura
Sayama's father (voice)
Kanehira Yamamoto
Young men's coalition F (voice)
Taishi Murata
Couple man (voice) , Kazuya Niimura (voice) , Young men's coalition A (fishery) (voice)
Sachiko Okada
Soup kitchen old woman (voice)
Megumi Han
Yoko Kamon (voice) , Hikari Sakishima as a Child (voice)
Mamiko Noto
Old clothes store clerk (voice)
Yuma Uchida
Hibana Asahi (voice)
Aya Endo
Miori Shiodome (voice)
Seiichiro Yamashita
Jin Iimori (voice) , Hama Junior High student A (voice)
Mutsumi Tamura
Gyomensou (voice)
Haruka Kudou
Mana Yamazaki (voice)
Shinji Kawada
Satoru Mihashi (voice)
Ikumi Hayama
Health and PE teacher (voice) , Talent (voice) , Yu Seiki (voice)
Itaru Yamamoto
Festival guest (voice) , Performer A (voice) , Shishio man (voice) , Young men's coalition A (voice)
Takahiro Fujiwara
Fishery cooperative member A (voice)
Sayaka Ohara
Manaka's mother (voice)
Saori Hayami
Ojoshi-sama (voice)
Ayumu Murase
Atsushi Minegishi (voice)
Crew of Nagi-Asu: A Lull in the Sea
Full backstage crew list →